minor symfony#14681 [FrameworkBundle] Removed unnecessary parameter in TemplateController (King2500)

This PR was submitted for the 2.7 branch but it was merged into the 2.3 branch instead (closes symfony#14681).

Discussion
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[FrameworkBundle] Removed unnecessary parameter in TemplateController

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | They should
| License       | MIT

`Response::setPublic()` doesn't have any parameters, so this parameter call is not needed.

Commits
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7a4394e [FrameworkBundle] Removed unnecessary parameter in TemplateController

Author: fabpot

src/Symfony/Bundle/FrameworkBundle/Controller/TemplateController.php

@@ -47,7 +47,7 @@ public function templateAction($template, $maxAge = null, $sharedAge = null, $pr
         if ($private) {
             $response->setPrivate();
         } elseif ($private === false || (null === $private && ($maxAge || $sharedAge))) {
-            $response->setPublic($private);
+            $response->setPublic();
         }
 
         return $response;